<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="a">111</div>
<button onclick="aaa()">点击</button>
<script src="../js/02.js">
    console.log(1111)
</script>
</body>

</html>